Port without cranes is unthinkable! And they look so interesting that I couldn't stop myself from getting my hands on them.

The first challenge is locking on a particular design, as there are quite a few variants. As a first scratchbuilt on cranes I wanted some references and found some really good help in the following site:

At this stage I was thinking about the texture of the cabin. I wanted to have them made of corrugated sheets, but didn't want to take 2 dimensional printouts and paste them. I wanted proper 3D corrugated sheets! When I was about to go out of ideas, my wife came with something (again!) that was worth trying. Using white glue and finely ribbed plastic bottle caps to create N scale corrugated sheets. The cap is one like this one...

Apply the white glue on top of it uniformly and let it dry. Then pull it off gently. Now on one side of the glue you will have a perfect corrugated texture.

Cutting and pasting all those layers took considerably far less time than making them! After the cabin was covered with corrugated sheets, my wife took her brushes and started giving that worn-out rusty look. It started looking great!